Troubleshooting

Common Problems 118074

Ubuntu 18.04 slow boot caused by systemd services

🟡 Medium   ⏱ 5–30 min  Last verified: 19 November 2019 📖 ~1 min read Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance Criteria Rollback Plan Prevention & Hardening Related Errors & Cross-Refs References & Further […]

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How to Configure Traffic Shaping with tc on SLES 12 — step-by-step SUSE Linux Enterprise 12 tutorial on Progressive Robot

How to Configure Traffic Shaping with tc on SLES 12

Introduction This tutorial covers How to Configure Traffic Shaping with tc on SLES 12 on SLES 12. SLES 12 (SUSE Linux Enterprise Server 16) is SUSE’s enterprise-grade Linux distribution. It uses the zypper package manager, AppArmor for mandatory access control, and systemctl for service management. Prerequisites Ensure your SLES 12 system is up to date: […]

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openSUSE Tumbleweed — syslog-ng — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — syslog-ng — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE security advisory Related CVEs: CVE-2011-0343 CVE-2011-1951 Upstream summary: Balabit syslog-ng 2.0, 3.0, 3.1, 3.2 OSE and PE, when running on FreeBSD or HP-UX, does not properly perform cast operations, which causes syslog-ng to […]

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FreeBSD 12 — cliqz — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — cliqz — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 19 November 2019 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: Mozilla — Stored passwords in 'Saved Logins' can be copied without master password entry Related CVEs: CVE-2019-11733 Upstream summary: Mozilla Foundation reports: CVE-2019-11733: Stored passwords in 'Saved Logins' can be […]

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How to Configure Zabbix Agent on Windows Server 2016 — step-by-step Windows Server 2016 tutorial on Progressive Robot

How to Configure Zabbix Agent on Windows Server 2016

How to Install Zabbix Agent on Windows Server 2016 Zabbix is a powerful open-source monitoring platform capable of collecting metrics from network devices, Linux and Windows servers, cloud instances, and applications. The Zabbix Agent runs on monitored hosts and reports data back to the Zabbix Server or Proxy. On Windows Server 2016, the Zabbix Agent […]

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FreeBSD 12 — libsamplerate — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — libsamplerate — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 19 November 2019 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: libsamplerate — multiple vulnerabilities Related CVEs: CVE-2017-7697 Upstream summary: NVD reports: In libsamplerate before 0.1.9, a buffer over-read occurs in the calc_output_single function in src_sinc.c via a crafted audio file. […]

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Arch Linux — git-annex — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — git-annex — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read  •  Source: Arch ASA ASA-201807-2 Related CVEs: CVE-2018-10859 CVE-2018-10857 Upstream summary: Type: multiple issues. Status: Fixed. Affected: 6.20180529-18. Fixed in: 6.20180626-1. Group: AVG-725. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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How to Configure syslog-ng for Centralised Syslog on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Configure syslog-ng for Centralised Syslog on RHEL 7

How to Configure syslog-ng for Centralised Syslog on RHEL 7 Every Linux system generates a continuous stream of log data from the kernel, system services, and applications. On a single host, rsyslog handles this adequately, but when you need to aggregate logs from dozens or hundreds of servers into a central repository, filter them intelligently, […]

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Debian 9 — python-reportlab — vulnerability — patch and remediation guide — diagnosis and fix on Debian 9

Debian 9 — python-reportlab — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 19 November 2019 Affected versions: Debian 9 (stretch) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2019-17626 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

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